HELP MY CHICKEN IS CHOKING!

I went outside a few minutes ago to give my chickens some food and change their water and while I was changing the water I noticed one of my chickens start acting like they were having trouble swallowing so I went over and took a look and she had some food stuck in her throat so I gave her some water and massaged her neck and she was still sticking her head up with her mouth out trying to swallow. So starting to get nervous I flipped her forward so she was almost upside down and massaged her neck for a second she then threw up a little, but still is doing it I finally put her to bed with the rest of my chickens and am now on here trying to figure out what to do.